Dear Marc,

Attached is a schema that I used to dissect out cortex, hippocampus and striatum. The scheme is for an adult brain, but I also used it for E18 en P0 mouse and rat brain. Instead of the brushes shown in the scheme, I use tips of closed #5 forceps to peal the striatum from the cortical tissue. It takes some practice to get familiar with the anatomy. It is probably best to practice on adult brain and then move to embryonic brain once you are familiar with the technique.